Frymaster GASFRYERSMODELS 35, GASFRYERSMODELS 45, Performance Pro 35, Performance Pro 45 User Manual
Gas Fryers Models 35 & 45
Performance Pro Series
Service and Parts Manual
Frymaster, a member of the Commercial Food Equipment Service Association, recommends
using CFESA Certied Technicians.
24-Hour Service Hotline 1-800-551-8633
APRIL 2006
IF, DURING THE WARRANTY PERIOD, THE CUSTOMER USES A PART FOR THE ENODIS
EQUIPMENT OTHER THAN AN UNMODIFIED NEW OR RECYCLED PART PURCHASED DIRECTLY
FROM FRYMASTER AND DEAN, OR ANY OF ITS AUTHORIZED SERVICE CENTERS, AND/OR
THE PART BEING USED IS MODIFIED FROM ITS ORIGINAL CONFIGURATION, THIS WARRANTY
WILL BE VOID. FURTHER, FRYMASTER AND DEAN AND ITS AFFILIATES WILL NOT BE LIABLE
FOR ANY CLAIMS, DAMAGES OR EXPENSES INCURRED BY THE CUSTOMER WHICH ARISE
DIRECTLY OR INDIRECTLY, IN WHOLE OR IN PART, DUE TO THE INSTALLATION OF ANY
MODIFIED PART AND/OR PART RECEIVED FROM AN UNAUTHORIZED SERVICE CENTER.
NOTICE
This appliance is intended for professional use only and is to be operated by qualied personnel only.
A Frymaster/DEAN Factory Authorized Service Center (FASC) or other qualied professional should
perform installation, maintenance, and repairs. Installation, maintenance, or repairs by unqualied
personnel may void the manufacturer’s warranty.
NOTICE
This equipment must be installed in accordance with the appropriate national and local codes of the
country and/or region in which the appliance is installed.
NOTICE TO U.S. CUSTOMERS
This equipment is to be installed in compliance with the basic plumbing code of the Building Ofcials
and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the
U.S. Food and Drug Administration.
NOTICE
Drawings and photos used in this manual are intended to illustrate operational, cleaning and technical
procedures and may not conform to onsite management operational procedures.
NOTICE TO OWNERS OF UNITS EQUIPPED WITH COMPUTERS
U.S.
This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions:
1) This device may not cause harmful interference, and 2) This device must accept any interference
received, including interference that may cause undesired operation. While this device is a veried
Class A device, it has been shown to meet the Class B limits.
CANADA
This digital apparatus does not exceed the Class A or B limits for radio noise emissions as set out by
the ICES-003 standard of the Canadian Department of Communications.
Cet appareil numerique n’emet pas de bruits radioelectriques depassany les limites de classe A et B
prescrites dans la norme NMB-003 edictee par le Ministre des Communcations du Canada.
DANGER
Improper installation, adjustment, maintenance or service, and unauthorized alterations or modications
can cause property damage, injury, or death. Read the installation, operating, and service instructions
thoroughly before installing or servicing this equipment. Only qualied service personnel may convert
this appliance to use a gas other than that for which it was originally congured.
DANGER
Adequate means must be provided to limit the movement of this appliance without depending upon the
gas line connection. Single fryers equipped with legs must be stabilized by installing anchor straps. All
fryers equipped with casters must be stabilized by installing restraining chains. If a exible gas line is
used, an additional restraining cable must be connected at all times when the fryer is in use.
DANGER
The front ledge of the fryer is not a step! Do not stand on the fryer. Serious injury can result from slips
or contact with the hot oil.
DANGER
Do not store or use gasoline or other ammable liquids or vapors in the vicinity of this or any other appliance.
DANGER
Instructions to be followed in the event the operator smells gas or otherwise detects a gas leak must
be posted in a prominent location. This information can be obtained from the local gas company or
gas supplier.
DANGER
The crumb tray in fryers equipped with a lter system must be emptied into a reproof container at the
end of frying operations each day. Some food particles can spontaneously combust if left soaking in
certain shortening material.
WARNING
Do not bang fry baskets or other utensils on the fryer’s joiner strip. The strip is present to seal the joint
between the fry vessels. Banging fry baskets on the strip to dislodge shortening will distort the strip,
adversely affecting its t. It is designed for a tight t and should only be removed for cleaning.
PERFORMANCE PRO SERIES GAS FRYERS MODELS 35 & 45
Table of Contents
CHAPTER 1: Service Procedures
1.1 General .................................................................................................................................................1-1
1.1.1 Pilot Ignition ..............................................................................................................................1-1
1.1.2 Electronic Ignition .....................................................................................................................1-1
1.1.3 Controller Options .....................................................................................................................1-2
1.1.4 Thermostats and Temperature Probes ........................................................................................1-2
1.2 Moving the Fryer for Servicing ...........................................................................................................1-2
1.3 Diagnostic Procedures .........................................................................................................................1-3
1.3.1 Cleaning the Gas Valve Vent Tube ............................................................................................1-3
1.3.2 Checking the Burner Manifold Gas Pressure ............................................................................1-3
1.3.3 Adjusting the Pilot Flame ..........................................................................................................1-5
1.3.4 Adjusting Burner Ceramic Target Spacing and Alignment .......................................................1-5
1.3.5 Calibrating the Thermostat ........................................................................................................1-5
1.3.6 Testing the Temperature Prode ..................................................................................................1-7
1.4 Replacing Fryer Components ..............................................................................................................1-7
1.4.1 Replacing a Controller or Computer .........................................................................................1-7
1.4.2 Replacing the Operating Thermostat in Units with Thermostat Control Panels .......................1-8
1.4.3 Replacing the Operating Thermostat in Units with Thermostat Access Doors .........................1-8
1.4.4 Replacing the Temperature Probe ..............................................................................................1-9
1.4.5 Replacing the High-Limit Thermostat in Fryers with Thermostat Controls .............................1-9
1.4.6 Replacing the High-Limit Thermostat in Fryers with Other Controls ......................................1-9
1.4.7 Replacing the Heat Mode Indicator Light in Fryers with Thermostat Controls ......................1-10
1.4.8 Replacing the Power or Melt Cycle Switch in Fryers with Thermostat Controls ...................1-10
1.4.9 Replacing Burner Ceramic Targets ..........................................................................................1-11
1.4.10 Replacing the Gas Valve ........................................................................................................ 1-11
1.4.11 Replacing the Pilot Assembly or Thermopile ........................................................................1-12
1.4.12 Replacing the Frypot .............................................................................................................1-12
1.5 Troubleshooting and Problem Isolation .............................................................................................1-14
1.5.1 Typical Problems .....................................................................................................................1-14
Pilot Failure .............................................................................................................................1-14
Ignition Failure ........................................................................................................................1-14
Improper Burner Function .......................................................................................................1-15
Improper Temperature Control ................................................................................................1-17
Gas Valve Malfunction ............................................................................................................1-17
Computer Malfunction ............................................................................................................1-17
Filtration Malfunction..............................................................................................................1-19
Leakage ....................................................................................................................................1-20
Basket Lift Malfunction...........................................................................................................1-20
1.5.2 Interpretation of Analog Controller Lights ..............................................................................1-23
1.6 Probe Resistance Chart ......................................................................................................................1-23
1.7 Troubleshooting Guides .....................................................................................................................1-24
1.7.1 Troubleshooting the 24 VAC Circuit: Analog Controller ........................................................1-24
Troubleshooting the 24 VAC Circuit: Electronic Ignition (Computer Controller) ..................1-24
Troubleshooting the 24 VAC Circuit: Standing Pilot (Computer Controller) .........................1-25
1.7.2 Troubleshooting the Gas Valve ................................................................................................1-25
1.7.3 Troubleshooting the Thermostat ..............................................................................................1-25
1.7.4 Troubleshooting the Temperature Probe ..................................................................................1-26
1.8 Wiring Diagrams ................................................................................................................................1-27
1.8.1 Standing Pilot ..........................................................................................................................1-27
1.8.2 Electronic Ignition ...................................................................................................................1-28
1.8.3 Non-Computer Controlled .......................................................................................................1-29
1.8.4 Filter Box .................................................................................................................................1-30
1.8.5 Modular Basket Lift 100/120V ................................................................................................1-31
1.8.6 Modular Basket Lift 208/250V ................................................................................................1-32
PERFORMANCE PRO SERIES GAS FRYERS MODELS 35 & 45
Table of Contents
CHAPTER 2: Parts List
2.1 Accessories ..........................................................................................................................................2-1
2.2 Basket Lift and Associated Parts ..........................................................................................................2-2
2.3 Cabinetry ..............................................................................................................................................2-4
2.3.1 FPP/FMP Model Cabinetry .......................................................................................................2-4
2.3.2 PMJ (Non-lter) Model Cabinetry ............................................................................................2-6
2.4 Casters, Legs, and Associated Hardware .............................................................................................2-9
2.5 Component Boxes ..............................................................................................................................2-10
2.5.1 Component Boxes without Melt Cycle ...................................................................................2-10
2.5.2 Component Boxes with Melt Cycle .........................................................................................2-12
2.5.3 Component Boxes with Standing Pilot ....................................................................................2-14
2.5.4 Component Boxes with Electronic Ignition ............................................................................2-16
2.6 Control Panel Assemblies, Flue Caps, and Related Items .................................................................2-18
2.7 Controller Assemblies ........................................................................................................................2-20
2.8 Door Assembly...................................................................................................................................2-22
2.9 Drain System Components ................................................................................................................2-23
2.9.1 Drain Tube System ..................................................................................................................2-23
2.9.2 Drain Valves; FPP/FMP Models ..............................................................................................2-24
2.9.3 Drain Valves; PMJ Models ......................................................................................................2-26
2.10 Filter Boxes ......................................................................................................................................2-27
2.11 Filter Pan Assembly .........................................................................................................................2-29
2.12 Frypots .............................................................................................................................................2-30
2.13 Frypot Cabinetry ..............................................................................................................................2-31
2.13.1 MJ45 Frypot Cabinetry ..........................................................................................................2-31
2.13.2 MJ35 Frypot Cabinetry ..........................................................................................................2-32
2.14 Gas Valves and Burners ...................................................................................................................2-33
2.14.1 MJ45 Gas Valves and Burners ...............................................................................................2-33
2.14.2 MJ35 Gas Valves and Burners ...............................................................................................2-35
2.15 Oil Return Components ...................................................................................................................2-37
2.16 Power Shower ..................................................................................................................................2-39
2.17 Thermostats and Timers ...................................................................................................................2-40
2.18 Wiring Harnesses, Pin Terminals, and Power Cords .......................................................................2-41
2.19 Garland Range (S35) Parts ...............................................................................................................2-42
PERFORMANCE PRO SERIES GAS FRYERS MODELS 35 & 45
CHAPTER 1: SERVICE PROCEDURES
1.1 General
Performance Pro Series gas fryers (formerly Master Jet 35- and 45-series fryers) contain a welded
stainless steel frypot directly heated by gas ames diffused evenly over its lower surface by ceramic
targets. The ames originate from orices in a U-shaped burner manifold positioned beneath the frypot.
They are equipped with either a millivolt gas valve or electromechanical gas valve that regulates gas ow
to the manifold. For operating information, refer to the Performance Pro Series Gas Fryers Models 35 &
45 Installation and Operation manual (P/N 819-6042). (Furthermore, referred to as the Installation and
Operation manual.)
1.1.1 Pilot Ignition
The pilot system is the pilot orice, pilot hood, and thermopile. The pilot serves two purposes: lighting
the burners and heating the thermopile. In operation, the thermopile is in contact with the pilot ame
and generates millivolts. The millivolt output passes through a normally closed high-limit switch and
energizes the gas valve pilot coil, which opens the pilot valve. If the pilot ame is extinguished, the gas
valve pilot coil loses voltage and the pilot valve closes.
In units equipped with 24-volt electromechanical gas valves, a separate 24-volt circuit activated by the
fryer power switch provides voltage through the thermostat or controller to the gas valve main coil,
which opens the main valve. The main gas valve will not open if the pilot valve is not open. Light the
pilot ame manually using a match or the optional built-in piezo ignitor after installing the fryer.
1.1.2 Electronic Ignition
In units congured for electronic ignition, an ignition module connected to an ignitor assembly replaces
the pilot system. The ignition module performs three important functions: supply voltage to the gas
valve, provide an ignition spark, and proof the pilot ame. The module contains a 4-second time delay
circuit and a coil that activates the gas valve. The ignitor assembly consists of a spark plug, a pilot, and
a ame sensor element.
At start-up the power switch is placed in the ON position, supplying 12 VDC to the heat control circuitry
in the controller or computer and to one side of the heat relay coil on the interface board. If resistance in
the temperature probe indicates the temperature in the frypot is below 180°F (82°C), the current ows
through a melt cycle circuit where a timer switch alternately closes for 3 seconds and opens for 24
seconds. If the temperature is 180°F (82°C) or above, the current ows through a heat circuit, bypassing
the timer switch. In either case, current is supplied to the other leg of the heat relay coil, which closes an
electronic switch in the 24 VAC circuit to provide current to the ignition module.
Circuitry in the ignition module sends 24 VAC current to the gas valve via a normally closed high-limit
switch and a drain safety switch. Simultaneously, the module causes the ignitor to spark for 4 seconds
to light the pilot ame. A ame sensor veries that the pilot is lit by measuring the ow of microamps
through the ame. If the pilot does not light or is extinguished, current to the ignition module is stopped,
preventing the main valve from opening, and the ignition module locks out until the power switch is
turned OFF, then back ON.
1-1
1.1.3 Controller Options
Performance Pro gas fryers may be equipped with thermostat controls, analog controllers, digital
controllers, basket lift timers, or Computer Magic computers. In fryers equipped with thermostat control
panels, the fryer and melt cycle are turned on and off using rocker switches and the temperature is set by
a knob connected directly to the frypot-mounted thermostat. These units have no interface board. When
the melt cycle switch is placed in the ON position, the fryer stays in the melt cycle mode until the switch
is manually placed in the OFF position, even if the oil is at setpoint temperature. In units equipped with
thermostat access doors, the temperature control knob is located behind the hinged front panel. Service
procedures for this type of thermostat are slightly different from units with other thermostat controls.
Fryers equipped with other types of controllers have an interface board located in the component shield
behind the control panel.
1.1.4 Thermostats and Temperature Probes
Performance Pro gas fryers may have different kinds of thermostats depending on their conguration.
Fryers equipped with thermostat controls have an adjustable controlling thermostat. Adjust the temperature
at which the thermostat opens and closes by turning the attached knob. The Fenwal controlling thermostat
used in these fryers is sensitive to 1° changes in temperature.
Fryers equipped with other types of controls have a temperature probe. In these units, the probe resistance
varies directly with the temperature. As the temperature rises, so does the amount of resistance at a rate
of approximately 2 ohms for every 1° (F or C) of temperature (see Probe Resistance Chart, Section 1.6).
Circuitry in the controller monitors the probe resistance and controls burner ring when the resistance
exceeds or falls below programmed temperatures (i.e., setpoint). To program temperatures into the fryer,
use the keypad on the face of the controller. When testing temperature probes, unplug the 15-pin wiring
harness from the controller; otherwise, the reading may be incorrect due to extra resistance.
All open burner fryers are equipped with a high-limit thermostat. If the fryer fails to properly control oil
temperature, the high-limit thermostat prevents the fryer from overheating to ash point. The high-limit
thermostat acts as a normally closed power switch that opens when exposed to temperatures between
425°F to 450°F (218°C to 232°C). It will automatically reset when the oil temperature drops below
350°F (177°C).
1.2 Moving the Fryer for Servicing
If it is necessary to move the fryer before servicing, complete the following actions:
1. Drain the frypot.
2. Turn off the gas supply to the unit. Unplug any power cords. Disconnect the unit from the gas
supply.
3. Remove attached restraining devices, including chain restraints and anchor straps.
4. Relocate the fryer to an appropriate area for servicing.
1-2
After servicing is complete:
Remove this plug and
connect a manometer or
pressure gauge to the
port.
5. Return the fryer to its original location, reconnect the unit to the gas supply, and open the gas supply
valve. Be sure to reattach all restraining devices and plug in all electrical cords.
6. Rellthefryerwithoil.
1.3 Diagnostic Procedures
1.3.1 Cleaning the Gas Valve Vent Tube
1. Carefullyunscrewtheventtubefromthegasvalve.
NOTE:Straightentheventtubeforeasyremoval.
2. Pass a piece of binding wire (.052-inch diameter) or equivalent through the tube to remove
obstructions.
3. Removethewireandblowthroughthetubetoensurethatitisclear.
4. Reinstallthetubeandbenditsothattheopeningispointingdown.
1.3.2 Checking the Burner Manifold Gas Pressure
1. Ensurethatthegasvalveknoborbutton isin theOFF
position.
2. Removethepressuretapplugfromtheendofthemanifold.
The frypot must be lled
with oil or water during this
WARNING
procedure.
3. Connectamanometerorpressuregaugetotheport.
4. PlacethegasvalveinthePILOTpositionandlight.Whentheburnerlightsandcontinuestoburn,
notethegaspressurereadingandcompareittotheaccompanyingtables.
To adjust burner gas pressure:
5. Onnon-CEvalves,removethecapfromtheregulatoradjustmentscrew.
6. Onallunits,increasethesettingonthethermostatuntiltheburnercomeson.
7. Monitorthegaspressurereadingonthemanometerorpressuregauge.
1-3
To access the pilot adjustment
screw on non-CE valves, this cap
must be removed.
Pilot Adjustment Screw
Honeywell Valve
(Non-CE Units)
Honeywell Valve
(CE Units)
Gas Valve Regulator
Adjustment Screw
35-Series Non-CE Standard
Burner Manifold Gas Pressures
Gas Pressure
Natural
Propane
4.0” W.C.
0.87 kPa
9.0” W.C.
2.24 kPa
35-Series CE Standard
Burner Manifold Gas Pressures
Gas Pressure
Natural Gas Lacq
(G20) under 20 mbar
Natural Gas Gronigue*
(G25) under 25 mbar
Natural Gas Gronigue*
(G20) under 20 mbar
Propane
(G31) under 37 or 50 mbar
* Belgian G25 and G20 = 9.0 mbar
9 mbar
11 mbar
11 mbar
22.5 mbar
45-Series Non-CE Standard
Burner Manifold Gas Pressures
Gas Pressure
Natural
Propane
45-Series CE Standard
Burner Manifold Gas Pressures
Gas Pressure
Natural Gas Lacq
(G20) under 20 mbar
Natural Gas Gronigue*
(G25) under 25 mbar
Natural Gas Gronigue
(G20) under 20 mbar
Propane
(G31) under 37 or 50 mbar
* Belgian G25 = 7.0 mbar
3.5” W.C.
0.73 kPa
8.25” W.C.
2.05 kPa
7.5 mbar
10 mbar
10 mbar
20.6 mbar
8. Use a at-head screwdriver to adjust the gas valve regulator adjustment screw to obtain the prescribed
pressure written on the rating plate or one of the charts above. (Use the diagram on below to locate
this screw.) Turn the screw clockwise to increase gas pressure and counterclockwise to decrease gas
pressure.
9. On non-CE units, reinstall the gas valve regulator cap screw when the correct manifold pressure is
obtained.
10. Place the gas valve in the OFF position. Remove the tting from the pressure tap hole and reinstall the
pressure tap plug.
11. Place the gas valve in the PILOT position. Re-light and check for any gas leaks.
12. Place the gas valve in the OFF position.
Locating the gas valve regulator adjustment screw and pilot adjustment screw.
1-4
1.3.3 Adjusting the Pilot Flame
There should be approximately ¾-inch spacing between the top edge
of the targets and the side of the frypot.
¾-inch
1. On non-CE valves, remove the cap covering the pilot adjustment screw. On all valves, use a attipped screwdriver to turn the pilot adjustment screw counterclockwise to increase the length of the
ame or clockwise to decrease the length of the ame. (Use the diagram on the previous page to
locate this screw.) Adjust the ame to a length of 1- to 1½- inches (25 to 38 mm).
2. On non-CE valves, reinstall the pilot adjustment screw cap.
1.3.4 Adjusting Burner Ceramic Target Spacing and Alignment
Proper spacing of the top edge of the ceramic targets is ¾-inch (13 mm) from the frypot side. To adjust
target spacing, bend the brackets away or toward the frypot, as needed. A length of board ¾-inch thick is
useful as a gauge to verify spacing and alignment.
1.3.5 Calibrating the Thermostat
Fryers with thermostat access doors:
1. Fill the frypot to the lower OIL-LEVEL line with cooking oil. If using solid shortening, pack it
tightly into the frypot before starting the calibration procedure.
2. Light the pilot. (See Chapter 3 of the Installation and Operation manual for detailed lighting
instructions.)
3. Insert a thermometer or pyrometer into the frypot, about 1-inch from the thermostat.
4. Open the thermostat access door and set the thermostat on the fryer to 325°F (162°C).
5. When oil reaches 325°F (162°C), allow the burners to cycle on and off three times.
6. Take a temperature reading when the burners go off for the third time.
7. Loosen the setscrews in the thermostat knob and turn the knob to the temperature established by the
thermometer/pyrometer reading.
1-5
8. Allow the burners to cycle on and off three more times and recheck the thermometer/pyrometer reading
against the thermostat setting. Temperature readings should be within 5°F (2.8°C) of setpoint.
Fryers with thermostat control panels:
NOTE: Remove the thermostat knob from its shaft to allow the control panel to hinge downward.
Follow the instructions in Section 1.4.2 to remove the knob and control panel.
1. Fill the frypot to the lower OIL-LEVEL line with cooking oil. If using solid shortening, pre-melt it
before starting the calibration procedure.
2. Ensure the fryer power switch is in the OFF position, and light the pilot. (Refer to Chapter 3 of the
Installation and Operation manual for detailed lighting instructions.)
3. Insert a thermometer or pyrometer into the frypot so that it
touches the thermostat guard.
The thermostat exible shaft
CAUTION
must not be rotated while
4. Loosen the setscrew and stop screw securing the thermostat
shaft extension to the exible shaft. Remove the extension to
installing the thermostat
shaft extension!
expose the slot in the end of the exible shaft.
5. Place the fryer power switch in the ON position.
NOTE: If the burner does not light at this time, it does not
mean the thermostat is defective.
Use a small at-head screwdriver to
slowly turn the exible shaft counterclockwise until the burner
Do not rotate the exible shaft
more than two turns in either
direction. Doing so will cause
damage to the thermostat.
lights.
6. When the oil temperature reaches 325°F (162°C), slowly turn the exible shaft clockwise until the
burner turns off. Then, allow the fryer to sit for a few minutes.
7. Repeat Steps 5 and 6 at least three times to ensure that the setting is accurate. The thermostat control
is considered properly calibrated if the burner lights when the cooking oil cools to 325°F (162°C).
Do not take the reading when the burner shuts off after raising the temperature.
8. Once the thermostat is calibrated, allow the burner to cycle on and off at least three times to ensure
that it lights at the correct temperature.
9. After the calibration is complete, place the fryer power switch in the OFF position and disconnect
the fryer from the electrical supply.
10. Carefully replace the thermostat shaft extension so that the stop screw points straight up. Without
rotating the exible shaft, tighten the stop screw, locking nut, and setscrew.
11. Close the fryer control panel and replace the screws and bezel.
12. Reinstall the thermostat knob. Align its pointer with the 325°F (162°C) index mark on the temperature
dial.
13. Reconnect the fryer to the electrical supply.
1-6
1.3.6 Testing the Temperature Probe
1. While it is still in the frypot, inspect the probe body for damage. Inspect the leads for fraying,
burning, breaks, or kinks. If the probe is bent, dented, or cracked, or if the leads are damaged, replace
the probe.
2. Determine the temperature of the cooking oil using a thermometer or pyrometer placed at the tip of
the probe.
3. Disconnect the 15-pin wiring harness from the interface board. Measure the probe resistance using
J2 pins 13 and 14.
4. Resistance should approximately equal the given probe resistance for the corresponding temperature
on the chart in Section 1.6, Page 1-23. If not, the probe has failed and must be replaced. Probes
cannot be calibrated.
NOTE:
A defective probe will cause inaccurate temperature measurements. If the temperature,
as measured by the probe, varies by more than 5°F! (2.8°C!) from the thermometer or pyrometer
reading, the probe should be replaced. Temperature probes cannot be calibrated.
1.4 Replacing Fryer Components
1.4.1 Replacing a Controller or Computer
1. Disconnect the fryer from the electrical power supply.
2. Slide the metal bezel up to disengage the lower tabs. Then, slide the bezel down to disengage the
upper tabs.
3. Remove the two screws holding the controller to the control panel frame.
4. Hinge the controller down to access the 15-pin wiring harness on the back and unplug it.
5. Lift the controller up and out of the hinged tab slots.
6. Use a 5/16-inch nut driver (P/N 802-0352) to remove the nut and green grounding wire from the back
of the controller.
7. If replacing the 15-pin wiring harness, do so now. Plug the new 15-pin wiring harness into the
interface board with the metal ring on the controller-end of the connector.
8. Connect the 15-pin wiring harness and the green ground wire to the new controller. When the
connector on the harness is completely engaged, the clips on either side will snap into place.
9. Re-hinge the controller by inserting the tabs on the bottom into the slots on the control frame panel.
10. Move it into the closed position against the control panel frame and replace the screws in the top
corners.
11. Insert the top tabs on the bezel into the slots on the underside of the top cap. Slide the bezel down to
engage the lower tabs in the lower slots.
1-7
1.4.2 Replacing the Operating Thermostat in Units with Thermostat Control Panels
stop screw
locking nut
setscrew
1. Disconnect the fryer from the electrical power supply. Turn
off the gas and disconnect the fryer.
2. Drain the frypot.
3. Loosen the setscrew securing the thermostat knob and remove
the knob. Remove the screws from the upper left and right
corners of the control panel. The control panel hinges at the
bottom and will swing open from the top.
4. Disconnect the 9-pin wiring harness and remove the control
panel from the fryer by disengaging its tabs from the hinge
slots in the mounting frame.
5. Loosen the setscrews securing the exible shaft to the thermostat
shaft. Slip the exible shaft off the thermostat shaft.
6. Remove the exible shaft guide by removing the two sheet
metal screws securing it to the upper frame.
7. Disconnect the thermostat leads from pin 14 in the 20-pin
terminal block and from the gas valve terminal.
CAUTION
The thermostat exible shaft
must not be rotated while
installing the thermostat
shaft extension!
Do not rotate the exible shaft
more than two turns in either
direction. Doing so will cause
damage to the thermostat.
NOTE: If the fryer has a melt cycle, the thermostat leads
connect to the PC board rather than to the terminal block and
gas valve. Disconnect the leads from the PC board if this is
the case.
8. Unscrew the thermostat from the frypot and remove it.
9. Apply Loctite™ PST56765 thread sealant or equivalent to the
threads of the replacement thermostat.
10. Reverse Steps 1-8 to install the replacement thermostat.
Loosen these setscrews and slip the
exible shaft off of the thermostat shaft.
1.4.3 Replacing the Operating Thermostat in Units with Thermostat Access Doors
1. Disconnect the fryer from the electrical power supply. Turn off the gas and disconnect the fryer.
2. Drain the frypot.
3. Use an allen wrench to loosen the setscrew at the side of the thermostat knob. Remove the knob.
4. Remove the two setscrews on both sides of the thermostat shaft and remove the dial plate.
5. Disconnect the thermostat wires from the gas valve.
6. Use a slotted socket to unscrew the thermostat from the frypot.
7. Apply Loctite™ PST56765 thread sealant or equivalent to the threads of the replacement thermostat.
8. Reverse Steps 1-7 to install the replacement thermostat.
1-8
1.4.4 Replacing the Temperature Probe
1. Disconnect the fryer from the electrical supply.
CAUTION
Drain the frypot before pro-
2. Drain the frypot.
ceeding.
3. Remove the controller or computer according to the instructions in Section 1.4.1.
4. Unplug the 12-pin wiring harness from the front of the interface board.
5. Use a pin-pusher to remove the temperature probe wires (pins 1 and 2) from the 12-pin wiring harness
6. Unscrew the temperature probe from the frypot and remove.
7. Apply Loctite™ PST56765 thread sealant or equivalent to threads of the replacement probe.
8. Screw the new probe into the frypot.
9. Reverse Steps 1-5 to reassemble.
10. Check the probe according to the instructions in Section 1.3.6.
1.4.5 Replacing the High-Limit Thermostat in Fryers with Thermostat Controls
1. Disconnect the fryer from the electrical supply.
CAUTION
Drain the frypot before pro-
2. Drain the frypot.
ceeding.
3. Remove the thermostat knob and/or control panel as instructed in Section 1.4.2 or 1.4.3.
4. Disconnect the high-limit thermostat leads from the gas valve pilot coil.
5. Unscrew the high-limit thermostat from the fryer and remove.
6. Apply Loctite™ PST56765 thread sealant or equivalent to the threads of the replacement high-limit
thermostat.
7. Reverse Steps 1-5 to the install replacement high-limit.
1.4.6 Replacing the High-Limit Thermostat in Fryers with Other Controls
1. Disconnect the fryer from the electrical supply.
CAUTION
Drain the frypot before pro-
2. Drain the frypot.
ceeding.
3. Remove the bezel and controller as instructed in Section 1.4.1, Steps 2 and 3.
4. Unplug the 15-pin wiring harness and grounding wire from the controller.
5. Remove the high-limit thermostat wires from the gas valve pilot coil.
1-9
6. Unscrew the high-limit thermostat from the fryer and remove it.
7. Attach the appropriate terminals (instructions furnished in the replacement kit) to the thermostat
leads.
8. Apply Loctite™ PST56765 thread sealant or equivalent to the threads of the replacement high-limit
thermostat.
9. Reverse Steps 1-6 to install the replacement high-limit.
1.4.7 Replacing the Heat Mode Indicator Light in Fryers with Thermostat Controls
1. Disconnect the fryer from the electrical power supply.
2. Remove the thermostat knob and control panel as instructed in Section 1.4.2 or 1.4.3, as appropriate.
3. Carefully press the light out from the back of the control panel.
4. Disconnect one wire at a time and reconnect it to the replacement light (before disconnecting the
next wire). Continue until all wires are transferred.
5. Carefully press the light back into the control panel.
6. Reinstall the thermostat knob and control panel by reversing Step 2.
7. Reconnect the fryer to the electrical power supply.
1.4.8 Replacing the Power or Melt Cycle Switch in Fryers with Thermostat Controls
1. Disconnect the fryer from the electrical power supply.
2. Remove the thermostat knob and control panel as instructed in Section 1.4.2.
3. Using a at-head screwdriver, disconnect the chrome bezel from the tabs on the switch and press the
switch out from the front.
4. Carefully press the new switch into the chrome bezel, making sure the tabs on the switch engage the
slots in the bezel.
5. Disconnect one wire at a time and reconnect it to the replacement switch (before disconnecting the
next wire). Continue until all wires are transferred.
6. Reinstall the thermostat knob and control panel by reversing Step 2.
7. Reconnect the fryer to the electrical power supply.
1-10
1.4.9 Replacing Burner Ceramic Targets
1. Disconnect the fryer from the electrical power supply. Turn off the gas and disconnect the fryer.
2. Drain the frypot or remove the handle from the drain valve.
WARNING
Drain the frypot or remove the
3. Remove the round drain sections as necessary to expose the
burners and heat shield.
handle from the drain valve
before proceeding further.
4. Disconnect the wires from the gas valve terminal block, marking each wire to facilitate reconnection.
5. Remove the high-limit thermostat wires from the gas valve pilot coil.
6. Disconnect the pipe union collar located on the bottom of the gas valve.
7. Remove the burner heat shield hanger screws at the front of the burner and remove the heat shield.
In units with built-in ltration, there may be a second heat shield located under the burner manifold.
Remove the screws holding it in place and remove it.
8. Remove the lter pan by sliding it out of the unit and lifting it up and out of the roller track.
9. Remove the burner hanger screws and lower the front of the main burner. Pull it forward to clear the
rear burner hanger and lower the burner to the oor.
10. Raise the front of the fryer enough to slide the burner from under the fryer cabinet.
11. To replace only the ceramic targets, straighten the target
locking tabs with a pair of needle nose pliers or a screwdriver
and slide the target up and off the bracket. Slide the
replacement target onto the bracket and bend the locking tabs
down.
Avoid cross-threading and
stripping when reinstalling
the brass orices.
CAUTION
To replace the entire target assembly, use a ½-inch (13mm) box end wrench to remove the two brass
orices that hold the assembly to the burner manifold. Position the new assembly and replace the
orices.
12. Reverse Steps 1-9 to reinstall the burner assembly. Compare spacing and alignment of targets with
the parameters in Section 1.3.4.
1.4.10 Replacing the Gas Valve
1. Disconnect the fryer from the electrical power supply. Turn
off the gas and disconnect the fryer.
Drain the frypot or remove the
WARNING
handle from the drain valve
2. Drain the frypot or remove the handle from the drain valve.
before proceeding further.
3. Disconnect the wires from the gas valve terminal block, marking each wire to facilitate reconnection.
1-11
4. Remove the high-limit thermostat wire from the gas valve pilot coil.
5. Disconnect the pilot gas line tting from the gas valve.
6. Disconnect both pipe union collars from the gas valve and remove the valve.
7. Remove the pipettings from the old gas valve and install them on the replacement valve. Use
Loctite™ PST56765 or equivalent pipe thread sealant on the threads.
8. Reverse Steps 1-6 to install the replacement gas valve.
1.4.11 Replacing the Pilot Assembly or Thermopile
WARNING
Drain the frypot or remove the
1. Remove the burner assembly in accordance with Steps 1-10
in Section 1.4.9.
handle from the drain valve
before proceeding further.
2. To replace only the thermopile:
a. Bend the clip at the bottom of the pilot assembly and press
the thermopile out of the pilot assembly from the top.
b. Disconnect the thermopile tting from the gas valve pilot coil.
c. Reverse Steps a and b to install the replacement thermopile.
3. To replace the complete pilot assembly:
Bend the clip to release the thermopile.
a. Disconnect the pilot tubing from the bottom of the pilot assembly.
b. Remove the screw from the pilot mounting bracket to release the pilot assembly.
c. Disconnect the thermopile tting from the gas valve pilot coil.
d. Reverse Steps a-c to install the replacement assembly.
4. Reinstall the burner assembly by reversing Steps 1-8 of Section 1.4.9.
1.4.12 Replacing the Frypot
1. Drain the frypot.
2. Disconnect the fryer from the electrical power supply. Turn off the gas supply and disconnect the
fryer.
3. Remove all accessories (i.e., frypot covers, basket lift arms, etc.) from the fryer.
4. If the fryer is equipped with a thermostat control, remove the thermostat knob and control panel
according to Steps 3-8 in Section 1.4.3.
NOTE: If the fryer is congured with a melt cycle, the thermostat leads will be connected to the PC board
rather than to the terminal block and gas valve. Disconnect the leads from the PC board if this is the case.
1-12
5. If the fryer is not equipped with a thermostat control, remove the controller according to Steps 2-6
in Section 1.4.1.
6. Disconnect the 12-pin plug from the interface board. Use a pin-pusher to remove the temperature
probe wires (pins 1 and 2) and the high-limit thermostat leads (pins 6 and 8) from the plug. Leave
all other wires connected.
7. Remove the control panel frame by removing the screws in the upper left and right corners that
secure the control panel to the topcap. Remove the screws in the top and bottom holes of each brace
of the control panel that secure it to the fryer. Pull the control panel straight out of the fryer frame.
It may require a rubber mallet to loosen it.
8. Disconnect the wires from the components in the component shield and mark to facilitate reconnection.
9. Disconnect the wires from the gas valve terminal block and mark each to facilitate reconnection.
10. Remove the cover from the drain safety switch, disconnect the wires from the switch, and pull them
out of the switch box.
11. Pull up and forward on the component shield to clear the rear mounting stud on the front of the
frypot and remove it from the fryer by rotating its right side up and to the left.
12. Disconnect the pipe union on the bottom of the gas valve.
13. On units with ltration, disconnect the section of drain connected to the drain valve of the frypot to
be removed.
14. Take off the topcap by removing the pairs of screws from each tab in the upper corners. Pull up to
slide it off the fryer. It may require a rubber mallet to loosen it.
15. Remove the frypot hold-down bracket, which attaches the front of the frypot to the frame of the fryer.
It is held in place by three screws: two securing it to the frame and one securing it to the frypot.
16. Remove the ue cap:
CAUTION
a. Remove all of the screws attaching the back panels to the
fryer and remove the panels.
Clean all threads and apply
Loctite™ PST56765 thread
sealant or equivalent when
b. Remove the screws in the bottom left and right corners of
the ue cap.
c. Slide the ue cap up to remove it.
installing the drain valve,
high-limit, and thermostat
or temperature probe on the
replacement frypot.
17. Remove the oil return line from the front of the frypot to be removed.
18. Lift the complete frypot assembly (frypot, burner, gas valve, and ue) from the fryer cabinet.
19. Transfer the burner heat shield and burner to the replacement frypot.
20. Remove
the drain valve, thermostat or temperature probe, and high-limit thermostat and install them
on the replacement frypot.
1-13
21. In units with multiple frypots, add a bead of silicon along the joint between the frypots to ensure a
seal. Then, insert the top connecting strip.
22. Reverse Steps 1-25 to reassemble the fryer.
1.5 Troubleshooting and Problem Isolation
Because it is not feasible to include every issue that might occur, this section is intended to provide
technicians with a general knowledge of the broad problem categories associated with this equipment
and the probable causes of each. With this knowledge, the technician should be able to isolate and correct
any problem encountered.
1.5.1 Typical Problems
You are likely to encounter problems in these broad categories:
1. Pilot Failure
2. Ignition Failure
3. Improper Burner Function
4. Improper Temperature Control
6. Computer Malfunction
7. Filtration Malfunction
8. Leakage
9. Basket Lift Malfunction
5. Gas Valve Malfunction
Read the following sections to learn more about each category. A series of troubleshooting guides is
also included at the end of the chapter to assist in identifying some of the more common problems. In
addition, Section 1.5.2 will guide technicians through interpretation of digital controller lights, helpful
in diagnosing problems.
Pilot Failure
There are two types of pilot failure: no pilot ame and unreliable pilot ame.
No pilot ame:
• Insufcient gas supply
• Clogged pilot orice
• Air in gas lines (usually in new installations).
Unreliable pilot ame:
• Open or grounded high limit
• Loose or corroded wire connections
• Low or no voltage out of thermopile
• Bad gas valve.
Ignition Failure
Ignition failure occurs when the gas valve no longer receives power, the gas supply stops, or the pilot
ame goes out. Solid-state controllers indicate ignition failure by illuminating the heat light and trouble
light simultaneously. Computers and digital timers will read HELP to indicate ignition failure. There
are three primary areas of focus in diagnosing and correcting ignition failure:
1. The gas and electrical power supplies
2. The electronic circuits
3. The gas valve.
1-14
The Gas and Electrical Power Supplies
The main indicators that the gas or electrical power supply is the cause of ignition failure are as follows:
an entire battery of fryers fails to light, and/or there are no indicator lights illuminated on the fryer
experiencing ignition failure. Verify that the quick disconnect hose is properly connected, the fryer is
plugged in, the main gas supply valve is open, and the circuit breaker for the fryer electrical supply is
not tripped.
The Electronic Circuits
If the fryer is receiving gas and electrical power, the next most likely cause of ignition failure is a problem
in the 24 VAC circuit of the pilot system. If the fryer is equipped with a drain valve for ltration purposes,
check the drain valve to verify that it is fully closed. A microswitch attached to the valve must be closed
for power to reach the gas valve. Often, although the valve handle appears to be in the closed position, the
microswitch is still open. If the valve is fully closed, or the fryer is not equipped with a ltration system,
refer to Troubleshooting the 24 VAC Circuit in Section 1.7.1 of this manual.
The Gas Valve
If the problem is not in the 24 VAC circuit of the pilot system, it is most likely in the gas valve. However,
before replacing the gas valve, refer to Troubleshooting the Gas Valve in Section 1.7.2 of this manual.
Improper Burner Function
In these types of instances, the burner ignites but exhibits abnormal characteristics, such as popping,
incomplete lighting of the burner, uctuating ame intensity, and ames “rolling” out of the fryer.
Popping indicates delayed ignition. In most cases, the main gas valve is opening, but the burner is not
immediately lighting. When ignition does take place, excess gas bursts into ame suddenly, rather than
smoothly igniting.
The primary causes of popping are:
1. Incorrect or uctuating gas pressure
2. Misdirected or weak pilot ame
3. Clogged burner orices
4. Inadequate make-up air
5. Missing or misaligned burner deector targets
6. Clogged vent tube (causing incorrect gas pressure).
Incorrect or Fluctuating Gas Pressure
If popping occurs only during peak hours, the problem may be incorrect or uctuating gas pressure.
Verify that the incoming gas pressure (to the gas valve) is in accordance with the appropriate CE or non-
CE standard found in the table on Page 1-4 and the pressure remains constant throughout all hours of
usage. Refer to Checking the Burner Manifold Pressure in Section 1.3.2 for instructions on checking the
pressure of gas supplied to the burner.
1-15
Misdirected or Weak Pilot Flame
If popping is consistent during all hours of operation, check position of the pilot above the burner orice
and verify that the pilot pressure is correct. A 1- to 1 ½-inch (25 to 38 mm) ame indicates correct pilot
pressure. Refer to Section 1.3.3 for information on pilot ame adjustment.
Clogged Burner Orices
Clogged burner orices, especially those near the pilot, are also likely causes of delayed ignition. Lack of
ame, ames that are orange in color, and ames that shoot out at an angle from the rest are indications
of clogged burner orices. If only one side of the burner is lighting, the rear deector target may be
misaligned or missing completely. Improper burner pressure may also cause this. If there are gaps in
burner ring, check for clogged burner orices.
Inadequate Make-up Air
Another cause of popping is an insufcient air supply or drafts that are blowing the pilot ame away
from the burner. Check for negative pressure conditions in the kitchen area. If air is owing into the
kitchen area, this indicates that more air is entering the kitchen than is leaving it. In a negative pressure
environment, the burners may not be receiving an adequate amount of air to maintain a strong pilot
ame.
Other Causes of Popping
Other causes of popping are more ambiguous and may have two or more possible causes to consider.
If the fryer’s gas and air supplies are okay, it is likely that the cause of the popping is one of the electrical
components. Examine the controller for signs of melting, distortion, and possibly discoloration due to
excessive heat buildup in the fryer (usually indicating improper ue performance). Automatically suspect
a discolored or distorted controller and replace it. However, it is important to diagnose and correct the
condition causing excessive heat in the fryer or the problem is likely to recur.
Fluctuating ame intensity is normally caused by improper or uctuating gas pressure or the result
of variations in the kitchen atmosphere. Verify incoming gas pressure in the same way as for popping,
discussed in the preceding paragraphs. Air condition and ventilation units (such as hoods) starting and
stopping throughout the day usually cause variations in the kitchen atmosphere. As they start and stop,
the pressure in the kitchen may change from positive or neutral to negative, or vice versa. They may also
cause changes in airow patterns that may affect ame intensity.
Flames “rolling” out of the fryer are usually an indication of negative pressure in the kitchen. The
negative air pressure is sucking air out of the fryer enclosure and the ames are following the air. If
negative pressure is not the cause, check for high burner manifold gas pressure in accordance with the
procedures in Section 1.3.2. An obstructed ue, which prevents the fryer from properly exhausting, may
also be the cause.
An unusually noisy burner, especially when ames are visible above the ue opening, may indicate
that the burner gas pressure is too high or that the gas valve vent tube is blocked. If the gas pressure is
correct and the vent tube is unobstructed, the gas valve regulator is probably defective.
1-16
Occasionally, a burner may appear to be operating correctly, but it shows a slow recovery rate (discussed
on Page 1-18). The primary causes of this are low burner manifold pressure and misaligned or missing
deector targets. In some cases, the cause is a gas valve regulator that is out of adjustment. Refer to
Section 1.3.2 for instructions on checking the burner manifold pressure and Section 1.3.4 for adjusting
deector target positioning.
Improper Temperature Control
Temperature control—including that for the melt cycle—is a function of several interrelated components,
each of which must operate correctly. The principal component is the thermostat (in units equipped
with thermostat controls) or the temperature probe (in fryers equipped with other types of controllers).
Depending upon the specic conguration of the fryer, it may also include an interface board and
controller. Problems with improper temperature control can be categorized into those issues concerning
melt cycle malfunctions and those concerning a failure to control at setpoint.
Melt Cycle
In fryers equipped with thermostat controls, the melt cycle is controlled with a solid state melt cycle
board and a melt cycle switch on the control panel. In all cases, replace the defective component.
In fryers equipped with other types of controllers, the problem may originate in the controller, the
temperature probe, or a malfunctioning heat relay on the interface board. For problem isolation techniques,
refer to the troubleshooting guides, Troubleshooting the Thermostat and Troubleshooting the Temperature
Probe, in Section 1.7, Troubleshooting.
Failure to Control at Setpoint
In fryers equipped with thermostat controls, the problem will be in the thermostat. Refer to Section 1.3.5
for instructions on calibrating the thermostat. Possible causes are that
• the thermostat is out of calibration,
• the knob or exible shaft is loose on the thermostat shaft,
• a thermostat wire is disconnected or broken, or
• the thermostat is defective.
Refer to Section 1.3.5 for instructions on calibrating the thermostat. In fryers equipped with other types
of controls, the problem may originate in the temperature probe or probe circuit, the interface board, or
the controller. Refer to Troubleshooting the Temperature Probe, Section 1.7.4., for problem isolation
techniques.
Gas Valve Malfunction
Occasionally, a gas valve may malfunction. Use Section 1.7.2, Troubleshooting the Gas Valve, to
determine if the valve has failed.
Computer Malfunction
Before diagnosing problems related to a computer controller, it is important to understand the use and
signicance of sensitivity and recovery.
1-17
Sensitivity and Recovery
Sensitivity—or “stretch time”—is a programmable feature, patented by Frymaster, which increases or
decreases the cook time countdown based on variation in the oil temperature from the setpoint. The
sensitivity for each product button has ten settings, 0-9. Setting sensitivity to “0” will disable the feature
completely, while a setting of “9” will provide the highest sensitivity or most change. The correct
sensitivity for any product is based on the type of product, its density, the setpoint temperature, and the
customer’s own requirements. A generic sensitivity chart is located on Page 1-5 of the Frymaster Fryer
Controllers manual (P/N 819-5916).
Recovery—or “rate of rise”— is a method of measuring a fryer’s performance. It is the time required for
the fryer to increase the oil temperature from 275°F to 325°F (135°C to 163°C). This range is the standard
since ambient kitchen temperatures can affect the test if lower ranges are used. The Computer Magic
computer controller performs the recovery test each day as the fryer heats-up. An operator can view the
results of the test any time the fryer is above 325°F (163°C) by pressing the button and entering the
code 1652. The test results display in the computer’s LED panel in minutes and seconds. The acceptable
recovery time is 2:30 or less. Extended recovery is a sign that the fryer is not being regularly maintained
or it is in need of servicing. The recovery time lengthens as fryer health declines. This is a useful tool for
gauging the condition of the fryer and should be checked regularly.
Common Computer Complaints
Most problems with Computer Magic controllers stem from programming issues. There are four common
complaints.
1. Fryer constantly displays HI.
Cause: Incorrect, low, or missing setpoint.
Fix: Press 1650, enter the correct setpoint using the keypad, then press to lock-in the new
setpoint.
2. Fryer constantly displays temperature.
Cause: The computer has been programmed to constantly display the temperature.
Fix: Press 165L.
3. Fryer displays temperature in Celsius.
Cause: The computer has been programmed to display in Celsius rather than Fahrenheit.
Fix: Press 1658.
4. Computer times down too slowly or too quickly.
Cause: The computer is compensating for oil temperature via the sensitivity setting.
Fix: Reprogram the sensitivity setting for each product by following the programming instructions in
the Installation and Operation manual or the Frymaster Fryers Controllers manual (P/N 819-5916).
1-18
Filtration Malfunction
Up for reverse
Sediment
Particle
Oil Flow
Down for forward
Sediment
Particle
The majority of ltration malfunctions arise from operator error. One of the most common errors is
placing the lter paper on the bottom of the lter pan rather than over the lter screen.
Inspect the lter paper to ensure that it is correctly sized and placed. Incorrectly sized or installed lter
paper will allow particles and sediment to pass through the lter pan and into the pump. When sediment
enters the pump, the gears can bind and cause the motor to overheat. If the motor overheats, the thermal
overload will trip to protect the motor from further damage. Reset the motor by pressing the red reset
button the end of the motor nearest the operator. Sediment cannot enter the pump when the correct
lter paper is used properly.
While you are checking the lter paper, verify that the O-rings on the lter pan and connectors are
present and in good condition. Missing or worn O-rings will allow the pump to suck air and decrease its
efciency.
A pump seized by debris or hard shortening can usually be freed by manually moving the gears with a
screwdriver or other tool.
1. Disconnect power to the lter system.
2. Remove the input plumbing from the pump.
3. Use a screwdriver to manually turn the gears.
• Turn the pump gears backward to release a hard particle
and remove it.
• Turn the pump gears forward to push softer objects and
solid shortening through the pump and allow the gears to
move freely.
Removing debris or shortening from
a seized pump.
Incorrectly sized or installed paper will also allow food particles and sediment to pass through and clog
the suction tube on the bottom of the lter carriage. Particles large enough to block the suction tube may
indicate that the crumb tray is not being used during ltering.
Pan blockage can also occur if shortening remains in the pan and solidies. The heater strip on the
suction tube prevents solidication of residual shortening left in the tube. It will not melt or prevent
solidication of shortening in the pan. Remove blockages by forcing the item out with an auger or drain
snake. Compressed air or other pressurized gases should not be used to force out the blockage.
The Power Shower may need service for clogged openings, shortening solidied in the tubes, missing
clean-out plugs, and missing or worn O-rings. To correct these problems, clean the unit and replace
missing or worn plugs and O-rings.
1-19
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